Issued Patents 1994
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5377054 | Digital information reproducing apparatus | Takeshi Yamaguchi | 1994-12-27 |
| 5365501 | Information recording and reproducing device | Takeshi Yamaguchi, Toshihisa Deguchi | 1994-11-15 |
| 5365507 | Light-amount control device for an optical-disk recording-reproduction apparatus | Takashi Iwaki | 1994-11-15 |
| 5365505 | Information reproducing device | — | 1994-11-15 |
| 5361247 | Information recording and reproducing device with reproduction and automatic gain control circuit | Toshihisa Deguchi, Shigeo Terashima, Takeshi Yamaguchi | 1994-11-01 |
| 5359466 | Magnetic head driving circuit with impedance elements to balance auxiliary coil loads | Mitsuo Ishii | 1994-10-25 |
| 5329408 | Magnetic field modulation magnet-optical recording apparatus in which an FM modulator and a magnetic head driving circuit are used in common | — | 1994-07-12 |
| 5315567 | Optical disk formatting system using index mark detecting circuit | Hirotsugu Matoba | 1994-05-24 |
| 5311493 | Data reproduction circuit for converting a read analog signal | — | 1994-05-10 |
| 5278814 | Apparatus for recording and reproducing information on and from an optical disk | Toshihisa Deguchi, Shigeo Terashima | 1994-01-11 |